replacing umlaute and fixing address in headers Haldeneggsteig -> Universitaetsstrasse

Signed-off-by: Reto Achermann <reto.achermann@inf.ethz.ch>

e1000: simulating inerrupts using periodic events

Signed-off-by: Roni Häcki <roni.haecki@inf.ethz.ch>

e1000: change driver to match new allocation framework

Signed-off-by: Roni Häcki <roni.haecki@inf.ethz.ch>

e1000: added check if queue is full

There were no checks if the queue is full when enqueueing
using de the device queue interface

Signed-off-by: Roni Häcki <roni.haecki@inf.ethz.ch>

Pass IRQ caps to e1k devif backend, add PCI int ctrl

We add a dedicated legacy PCI interrupt controller, that will
activate interrupts in the PCI conf space. It works analogous
to the MSIx case then. The controller driver is not yet implemented.

Signed-off-by: Lukas Humbel <lukas.humbel@inf.ethz.ch>

devif: move e1000 backend to usr/driver/e1000/

Signed-off-by: Roni Häcki <roni.haecki@inf.ethz.ch>